STFPC311(2012) 查看數據表（PDF） - STMicroelectronics

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STFPC311
(Rev.:2012)

Front panel controller/driver with standby power management

STMicroelectronics 

Commands

STFPC311

Upon power application, the following modes are selected:

● Display Mode Setting: the 16-digit, 12-segment mode is selected (default: display off

and key-scan on).

● Remote Control Protocol Setting: RC-5.

● Watchdog Timer Setting: Turned on with 10s. After the first command is processed by

STFPC311, the watchdog timer is turned off until it is turned on by the host.

● Watchdog action: Issue Standby.

6.2

Data setting command

This command sets the data WRITE and READ modes see Figure 16.

Obsolete Product(s) - Obsolete Product(s) Figure 16. STFPC311 data setting command order

When the application is powered-up, the normal operation mode and address increment

mode is set with the default display memory address set to 00H. In the auto-increment

address mode, the address command is sent once, followed by the data bytes.

Alternatively, the data command can be sent, followed by the data bytes. In this case, when

new display data is to be written, the last value of the address will be used and then

incremented. Upon reaching the last display memory address, the address jumps to 00H.

For fixed address mode, the address command has to be sent, followed by the display data.

When next byte of data is to be written, the address command has to be sent again before

the new display data byte.

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Doc ID 12324 Rev 2

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